Patents by Inventor P. C. Smith

P. C. Smith has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Sealed conductive active alloy feedthroughs
    Patent number: 5368220
    Abstract: A method of manufacturing a hermetically sealed conductive feedthrough, particularly for use in ceramic substrates or housing, comprises the steps of inserting an active alloy containing preform into a predetermined insertion hole in a presintered ceramic article and heating the assembly to a temperature to achieve a brazing reaction at the interface of the article and active alloy to produce a hermetically sealed conductive feedthrough. The invention further discloses a non-melting connector pin which may be fixed to the active alloy feedthrough during the above heating step.
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: November 29, 1994
    Assignee: Morgan Crucible Company plc
    Inventors: Howard Mizuhara, P. C. Smith